MRI: Acquisition of a Xeuss 3.0 with Genix 3D Small-Angle X-ray Scattering Instrument

MRI：使用 Genix 3D 小角度 X 射线散射仪采集 Xeuss 3.0

• 批准号: 2117657
• 负责人: Ying Meng
• 金额: $ 50.42万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-10-01 至 2024-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2117657&HistoricalAwards=false
• 关键词: MRI; Acquisition; Xeuss; 3.0; Genix

This Major Research Instrumentation Award is for a 3D Small-Angle and Wide-Angle X-ray Scattering (SAXS/WAXS) instrument, located in a shared nano/microfabrication and materials analysis facility at UC San Diego. As an essential analytical tool, this advanced SAXS/WAXS instrument supports the ongoing research of a broad cross-section of researchers, enabling discoveries in synthetic chemistry, catalysis, inorganic and biological materials, quantum materials, and energy storage/conversion materials. The instrument provides a versatile, state-of-the-art, reliable and local solution to the SAXS needs of the large scientific community in the Southern California region comprising San Diego and Orange Counties. In addition, the SAXS/WAXS instrument is used to enrich the training of both graduate and undergraduate students in the theory, synthesis, and analysis of nano- and microstructured materials. It allows instructors to use modern research data for pedagogical purposes, provides students with hands-on x-ray training to enhance their science, engineering, and technology curriculum, and augments the educational outreach programs at UC San Diego, bringing a significant opportunity to increase participation of underrepresented students in research.Small-Angle and Wide-Angle X-ray Scattering (SAXS/WAXS) is one of the few experimental techniques that can characterize the nano- and microstructure of soft matter and nanomaterials. It is an essential analytical tool in the characterization of mesoscale and nanoscale features in a wide range of biological and artificial materials. The instrument enables measurement in a dynamic environment (with in-situ control of temperature, humidity, and ambient gas concentration) to provide insights into materials structure-function and structure-response relationships. Unique features of the instrument include automated simultaneous SAXS and WAXS measurements, grazing incidence measurements on liquid interfaces, and low-volume flow-through sampling of biomacromolecules. These features are also appropriate for studies of: (i) short-lived species; (ii) degradation-prone biological samples; (iii) air-, temperature-, or water-sensitive materials; and (iv) materials systems that require frequent or long-timescale x-ray measurements. The instrument also features a doubly focused point source, which allows for collecting scattering data from both isotropic and anisotropic samples because a scattering image can be generated from the entire projected source. The instrument is used to solve transformational materials science problems in the areas of mesomaterials, inorganic, and biological materials, quantum materials, and energy storage/conversion materials.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项重大的研究仪器奖是针对位于圣地亚哥分校共享的纳米/微加工和材料分析设施的3D小角度和广角X射线散射（SAXS/WAXS）仪器。作为必不可少的分析工具，该先进的SAXS/WAXS仪器支持研究人员的广泛横截面的持续研究，从而在合成化学，催化，无机材料和生物学材料，量子材料以及能源储能/转换材料中提供了发现。该乐器为包括圣地亚哥和橙色县的大型科学界提供了一种多功能，最先进的，可靠和本地的解决方案。此外，SAXS/WAXS仪器用于在理论，合成和纳米和微结构材料的理论，合成和分析中培训研究生和本科生的培训。它允许讲师将现代研究数据用于教学目的，为学生提供动手的X射线培训，以增强他们的科学，工程和技术课程，并增强圣地亚哥分校加州大学圣地亚哥分校的教育外展计划，从而带来了一个重要的机会，可以增加代表性不足的学生参与研究。软物质和纳米材料的纳米和微观结构。它是在广泛的生物学和人造材料中表征中尺度和纳米级特征的表征的必不可少的分析工具。该仪器可以在动态环境（对温度，湿度和环境气体浓度的原位控制）中进行测量，以提供对材料结构函数和结构反应关系的见解。该仪器的独特特征包括自动同时进行SAX和蜡测量，液体界面上的放牧发病率测量以及生物百片分子的低量流通采样。这些特征也适用于：（i）短寿命物种； （ii）容易降解的生物样品； （iii）空气，温度或水敏感材料； （iv）需要频繁或长时间X射线测量的材料系统。该仪器还具有双重聚焦的点源，它允许从各向同性和各向异性样品中收集散射数据，因为可以从整个投影源中生成散射图像。该仪器用于解决中材料，无机和生物材料，量子材料以及能源存储/转换材料领域中的转化材料科学问题。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来支持的。